|  | /* Disassemble SH instructions. | 
|  | Copyright (C) 1993-2024 Free Software Foundation, Inc. | 
|  |  | 
|  | This file is part of the GNU opcodes library. | 
|  |  | 
|  | This library is free software; you can redistribute it and/or modify | 
|  | it under the terms of the GNU General Public License as published by | 
|  | the Free Software Foundation; either version 3, or (at your option) | 
|  | any later version. | 
|  |  | 
|  | It is distributed in the hope that it will be useful, but WITHOUT | 
|  | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | 
|  | or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public | 
|  | License for more details. | 
|  |  | 
|  | You should have received a copy of the GNU General Public License | 
|  | along with this file; see the file COPYING.  If not, write to the | 
|  | Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, | 
|  | MA 02110-1301, USA.  */ | 
|  |  | 
|  | #include "sysdep.h" | 
|  | #include <stdio.h> | 
|  |  | 
|  | #define STATIC_TABLE | 
|  | #define DEFINE_TABLE | 
|  |  | 
|  | #include "sh-opc.h" | 
|  | #include "disassemble.h" | 
|  |  | 
|  | static void | 
|  | print_movxy (const sh_opcode_info *op, | 
|  | int rn, | 
|  | int rm, | 
|  | fprintf_ftype fprintf_fn, | 
|  | void *stream) | 
|  | { | 
|  | int n; | 
|  |  | 
|  | fprintf_fn (stream, "%s\t", op->name); | 
|  | for (n = 0; n < 2; n++) | 
|  | { | 
|  | switch (op->arg[n]) | 
|  | { | 
|  | case A_IND_N: | 
|  | case AX_IND_N: | 
|  | case AXY_IND_N: | 
|  | case AY_IND_N: | 
|  | case AYX_IND_N: | 
|  | fprintf_fn (stream, "@r%d", rn); | 
|  | break; | 
|  | case A_INC_N: | 
|  | case AX_INC_N: | 
|  | case AXY_INC_N: | 
|  | case AY_INC_N: | 
|  | case AYX_INC_N: | 
|  | fprintf_fn (stream, "@r%d+", rn); | 
|  | break; | 
|  | case AX_PMOD_N: | 
|  | case AXY_PMOD_N: | 
|  | fprintf_fn (stream, "@r%d+r8", rn); | 
|  | break; | 
|  | case AY_PMOD_N: | 
|  | case AYX_PMOD_N: | 
|  | fprintf_fn (stream, "@r%d+r9", rn); | 
|  | break; | 
|  | case DSP_REG_A_M: | 
|  | fprintf_fn (stream, "a%c", '0' + rm); | 
|  | break; | 
|  | case DSP_REG_X: | 
|  | fprintf_fn (stream, "x%c", '0' + rm); | 
|  | break; | 
|  | case DSP_REG_Y: | 
|  | fprintf_fn (stream, "y%c", '0' + rm); | 
|  | break; | 
|  | case DSP_REG_AX: | 
|  | fprintf_fn (stream, "%c%c", | 
|  | (rm & 1) ? 'x' : 'a', | 
|  | (rm & 2) ? '1' : '0'); | 
|  | break; | 
|  | case DSP_REG_XY: | 
|  | fprintf_fn (stream, "%c%c", | 
|  | (rm & 1) ? 'y' : 'x', | 
|  | (rm & 2) ? '1' : '0'); | 
|  | break; | 
|  | case DSP_REG_AY: | 
|  | fprintf_fn (stream, "%c%c", | 
|  | (rm & 2) ? 'y' : 'a', | 
|  | (rm & 1) ? '1' : '0'); | 
|  | break; | 
|  | case DSP_REG_YX: | 
|  | fprintf_fn (stream, "%c%c", | 
|  | (rm & 2) ? 'x' : 'y', | 
|  | (rm & 1) ? '1' : '0'); | 
|  | break; | 
|  | default: | 
|  | abort (); | 
|  | } | 
|  | if (n == 0) | 
|  | fprintf_fn (stream, ","); | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Print a double data transfer insn.  INSN is just the lower three | 
|  | nibbles of the insn, i.e. field a and the bit that indicates if | 
|  | a parallel processing insn follows.  */ | 
|  |  | 
|  | static void | 
|  | print_insn_ddt (int insn, struct disassemble_info *info) | 
|  | { | 
|  | fprintf_ftype fprintf_fn = info->fprintf_func; | 
|  | void *stream = info->stream; | 
|  |  | 
|  | /* If this is just a nop, make sure to emit something.  */ | 
|  | if (insn == 0x000) | 
|  | { | 
|  | fprintf_fn (stream, "nopx\tnopy"); | 
|  | return; | 
|  | } | 
|  |  | 
|  | /* If a parallel processing insn was printed before, | 
|  | and we got a non-nop, emit a tab.  */ | 
|  | if ((insn & 0x800) && (insn & 0x3ff)) | 
|  | fprintf_fn (stream, "\t"); | 
|  |  | 
|  | /* Check if either the x or y part is invalid.  */ | 
|  | if (((insn & 3) != 0 && (insn & 0xc) == 0 && (insn & 0x2a0)) | 
|  | || ((insn & 3) == 0 && (insn & 0xc) != 0 && (insn & 0x150))) | 
|  | if (info->mach != bfd_mach_sh_dsp | 
|  | && info->mach != bfd_mach_sh3_dsp) | 
|  | { | 
|  | static const sh_opcode_info *first_movx, *first_movy; | 
|  | const sh_opcode_info *op; | 
|  | int is_movy; | 
|  |  | 
|  | if (! first_movx) | 
|  | { | 
|  | for (first_movx = sh_table; first_movx->nibbles[1] != MOVX_NOPY;) | 
|  | first_movx++; | 
|  | for (first_movy = first_movx; first_movy->nibbles[1] != MOVY_NOPX;) | 
|  | first_movy++; | 
|  | } | 
|  |  | 
|  | is_movy = ((insn & 3) != 0); | 
|  |  | 
|  | if (is_movy) | 
|  | op = first_movy; | 
|  | else | 
|  | op = first_movx; | 
|  |  | 
|  | while (op->nibbles[2] != (unsigned) ((insn >> 4) & 3) | 
|  | || op->nibbles[3] != (unsigned) (insn & 0xf)) | 
|  | op++; | 
|  |  | 
|  | print_movxy (op, | 
|  | (4 * ((insn & (is_movy ? 0x200 : 0x100)) == 0) | 
|  | + 2 * is_movy | 
|  | + 1 * ((insn & (is_movy ? 0x100 : 0x200)) != 0)), | 
|  | (insn >> 6) & 3, | 
|  | fprintf_fn, stream); | 
|  | } | 
|  | else | 
|  | fprintf_fn (stream, ".word 0x%x", insn | 0xf000); | 
|  | else | 
|  | { | 
|  | static const sh_opcode_info *first_movx, *first_movy; | 
|  | const sh_opcode_info *opx, *opy; | 
|  | unsigned int insn_x, insn_y; | 
|  |  | 
|  | if (! first_movx) | 
|  | { | 
|  | for (first_movx = sh_table; first_movx->nibbles[1] != MOVX;) | 
|  | first_movx++; | 
|  | for (first_movy = first_movx; first_movy->nibbles[1] != MOVY;) | 
|  | first_movy++; | 
|  | } | 
|  | insn_x = (insn >> 2) & 0xb; | 
|  | if (insn_x) | 
|  | { | 
|  | for (opx = first_movx; opx->nibbles[2] != insn_x;) | 
|  | opx++; | 
|  | print_movxy (opx, ((insn >> 9) & 1) + 4, (insn >> 7) & 1, | 
|  | fprintf_fn, stream); | 
|  | } | 
|  | insn_y = (insn & 3) | ((insn >> 1) & 8); | 
|  | if (insn_y) | 
|  | { | 
|  | if (insn_x) | 
|  | fprintf_fn (stream, "\t"); | 
|  | for (opy = first_movy; opy->nibbles[2] != insn_y;) | 
|  | opy++; | 
|  | print_movxy (opy, ((insn >> 8) & 1) + 6, (insn >> 6) & 1, | 
|  | fprintf_fn, stream); | 
|  | } | 
|  | if (!insn_x && !insn_y && ((insn & 0x3ff) != 0 || (insn & 0x800) == 0)) | 
|  | fprintf_fn (stream, ".word 0x%x", insn | 0xf000); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void | 
|  | print_dsp_reg (int rm, fprintf_ftype fprintf_fn, void *stream) | 
|  | { | 
|  | switch (rm) | 
|  | { | 
|  | case A_A1_NUM: | 
|  | fprintf_fn (stream, "a1"); | 
|  | break; | 
|  | case A_A0_NUM: | 
|  | fprintf_fn (stream, "a0"); | 
|  | break; | 
|  | case A_X0_NUM: | 
|  | fprintf_fn (stream, "x0"); | 
|  | break; | 
|  | case A_X1_NUM: | 
|  | fprintf_fn (stream, "x1"); | 
|  | break; | 
|  | case A_Y0_NUM: | 
|  | fprintf_fn (stream, "y0"); | 
|  | break; | 
|  | case A_Y1_NUM: | 
|  | fprintf_fn (stream, "y1"); | 
|  | break; | 
|  | case A_M0_NUM: | 
|  | fprintf_fn (stream, "m0"); | 
|  | break; | 
|  | case A_A1G_NUM: | 
|  | fprintf_fn (stream, "a1g"); | 
|  | break; | 
|  | case A_M1_NUM: | 
|  | fprintf_fn (stream, "m1"); | 
|  | break; | 
|  | case A_A0G_NUM: | 
|  | fprintf_fn (stream, "a0g"); | 
|  | break; | 
|  | default: | 
|  | fprintf_fn (stream, "0x%x", rm); | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | static void | 
|  | print_insn_ppi (int field_b, struct disassemble_info *info) | 
|  | { | 
|  | static char *sx_tab[] = { "x0", "x1", "a0", "a1" }; | 
|  | static char *sy_tab[] = { "y0", "y1", "m0", "m1" }; | 
|  | fprintf_ftype fprintf_fn = info->fprintf_func; | 
|  | void *stream = info->stream; | 
|  | unsigned int nib1, nib2, nib3; | 
|  | unsigned int altnib1, nib4; | 
|  | char *dc = NULL; | 
|  | const sh_opcode_info *op; | 
|  |  | 
|  | if ((field_b & 0xe800) == 0) | 
|  | { | 
|  | fprintf_fn (stream, "psh%c\t#%d,", | 
|  | field_b & 0x1000 ? 'a' : 'l', | 
|  | (field_b >> 4) & 127); | 
|  | print_dsp_reg (field_b & 0xf, fprintf_fn, stream); | 
|  | return; | 
|  | } | 
|  | if ((field_b & 0xc000) == 0x4000 && (field_b & 0x3000) != 0x1000) | 
|  | { | 
|  | static char *du_tab[] = { "x0", "y0", "a0", "a1" }; | 
|  | static char *se_tab[] = { "x0", "x1", "y0", "a1" }; | 
|  | static char *sf_tab[] = { "y0", "y1", "x0", "a1" }; | 
|  | static char *sg_tab[] = { "m0", "m1", "a0", "a1" }; | 
|  |  | 
|  | if (field_b & 0x2000) | 
|  | fprintf_fn (stream, "p%s %s,%s,%s\t", | 
|  | (field_b & 0x1000) ? "add" : "sub", | 
|  | sx_tab[(field_b >> 6) & 3], | 
|  | sy_tab[(field_b >> 4) & 3], | 
|  | du_tab[(field_b >> 0) & 3]); | 
|  |  | 
|  | else if ((field_b & 0xf0) == 0x10 | 
|  | && info->mach != bfd_mach_sh_dsp | 
|  | && info->mach != bfd_mach_sh3_dsp) | 
|  | fprintf_fn (stream, "pclr %s \t", du_tab[(field_b >> 0) & 3]); | 
|  |  | 
|  | else if ((field_b & 0xf3) != 0) | 
|  | fprintf_fn (stream, ".word 0x%x\t", field_b); | 
|  |  | 
|  | fprintf_fn (stream, "pmuls%c%s,%s,%s", | 
|  | field_b & 0x2000 ? ' ' : '\t', | 
|  | se_tab[(field_b >> 10) & 3], | 
|  | sf_tab[(field_b >>  8) & 3], | 
|  | sg_tab[(field_b >>  2) & 3]); | 
|  | return; | 
|  | } | 
|  |  | 
|  | nib1 = PPIC; | 
|  | nib2 = field_b >> 12 & 0xf; | 
|  | nib3 = field_b >> 8 & 0xf; | 
|  | nib4 = field_b >> 4 & 0xf; | 
|  | switch (nib3 & 0x3) | 
|  | { | 
|  | case 0: | 
|  | dc = ""; | 
|  | nib1 = PPI3; | 
|  | break; | 
|  | case 1: | 
|  | dc = ""; | 
|  | break; | 
|  | case 2: | 
|  | dc = "dct "; | 
|  | nib3 -= 1; | 
|  | break; | 
|  | case 3: | 
|  | dc = "dcf "; | 
|  | nib3 -= 2; | 
|  | break; | 
|  | } | 
|  | if (nib1 == PPI3) | 
|  | altnib1 = PPI3NC; | 
|  | else | 
|  | altnib1 = nib1; | 
|  | for (op = sh_table; op->name; op++) | 
|  | { | 
|  | if ((op->nibbles[1] == nib1 || op->nibbles[1] == altnib1) | 
|  | && op->nibbles[2] == nib2 | 
|  | && op->nibbles[3] == nib3) | 
|  | { | 
|  | int n; | 
|  |  | 
|  | switch (op->nibbles[4]) | 
|  | { | 
|  | case HEX_0: | 
|  | break; | 
|  | case HEX_XX00: | 
|  | if ((nib4 & 3) != 0) | 
|  | continue; | 
|  | break; | 
|  | case HEX_1: | 
|  | if ((nib4 & 3) != 1) | 
|  | continue; | 
|  | break; | 
|  | case HEX_00YY: | 
|  | if ((nib4 & 0xc) != 0) | 
|  | continue; | 
|  | break; | 
|  | case HEX_4: | 
|  | if ((nib4 & 0xc) != 4) | 
|  | continue; | 
|  | break; | 
|  | default: | 
|  | abort (); | 
|  | } | 
|  | fprintf_fn (stream, "%s%s\t", dc, op->name); | 
|  | for (n = 0; n < 3 && op->arg[n] != A_END; n++) | 
|  | { | 
|  | if (n && op->arg[1] != A_END) | 
|  | fprintf_fn (stream, ","); | 
|  | switch (op->arg[n]) | 
|  | { | 
|  | case DSP_REG_N: | 
|  | print_dsp_reg (field_b & 0xf, fprintf_fn, stream); | 
|  | break; | 
|  | case DSP_REG_X: | 
|  | fprintf_fn (stream, "%s", sx_tab[(field_b >> 6) & 3]); | 
|  | break; | 
|  | case DSP_REG_Y: | 
|  | fprintf_fn (stream, "%s", sy_tab[(field_b >> 4) & 3]); | 
|  | break; | 
|  | case A_MACH: | 
|  | fprintf_fn (stream, "mach"); | 
|  | break; | 
|  | case A_MACL: | 
|  | fprintf_fn (stream, "macl"); | 
|  | break; | 
|  | default: | 
|  | abort (); | 
|  | } | 
|  | } | 
|  | return; | 
|  | } | 
|  | } | 
|  | /* Not found.  */ | 
|  | fprintf_fn (stream, ".word 0x%x", field_b); | 
|  | } | 
|  |  | 
|  | /* FIXME mvs: movx insns print as ".word 0x%03x", insn & 0xfff | 
|  | (ie. the upper nibble is missing).  */ | 
|  |  | 
|  | int | 
|  | print_insn_sh (bfd_vma memaddr, struct disassemble_info *info) | 
|  | { | 
|  | fprintf_ftype fprintf_fn = info->fprintf_func; | 
|  | void *stream = info->stream; | 
|  | unsigned char insn[4]; | 
|  | unsigned char nibs[8]; | 
|  | int status; | 
|  | bfd_vma relmask = ~(bfd_vma) 0; | 
|  | const sh_opcode_info *op; | 
|  | unsigned int target_arch; | 
|  | int allow_op32; | 
|  |  | 
|  | switch (info->mach) | 
|  | { | 
|  | case bfd_mach_sh: | 
|  | target_arch = arch_sh1; | 
|  | /* SH coff object files lack information about the machine type, so | 
|  | we end up with bfd_mach_sh unless it was set explicitly (which | 
|  | could have happended if this is a call from gdb or the simulator.)  */ | 
|  | if (info->symbols | 
|  | && bfd_asymbol_flavour(*info->symbols) == bfd_target_coff_flavour) | 
|  | target_arch = arch_sh4; | 
|  | break; | 
|  | default: | 
|  | target_arch = sh_get_arch_from_bfd_mach (info->mach); | 
|  | } | 
|  |  | 
|  | status = info->read_memory_func (memaddr, insn, 2, info); | 
|  |  | 
|  | if (status != 0) | 
|  | { | 
|  | info->memory_error_func (status, memaddr, info); | 
|  | return -1; | 
|  | } | 
|  |  | 
|  | if (info->endian == BFD_ENDIAN_LITTLE) | 
|  | { | 
|  | nibs[0] = (insn[1] >> 4) & 0xf; | 
|  | nibs[1] = insn[1] & 0xf; | 
|  |  | 
|  | nibs[2] = (insn[0] >> 4) & 0xf; | 
|  | nibs[3] = insn[0] & 0xf; | 
|  | } | 
|  | else | 
|  | { | 
|  | nibs[0] = (insn[0] >> 4) & 0xf; | 
|  | nibs[1] = insn[0] & 0xf; | 
|  |  | 
|  | nibs[2] = (insn[1] >> 4) & 0xf; | 
|  | nibs[3] = insn[1] & 0xf; | 
|  | } | 
|  | status = info->read_memory_func (memaddr + 2, insn + 2, 2, info); | 
|  | if (status != 0) | 
|  | allow_op32 = 0; | 
|  | else | 
|  | { | 
|  | allow_op32 = 1; | 
|  |  | 
|  | if (info->endian == BFD_ENDIAN_LITTLE) | 
|  | { | 
|  | nibs[4] = (insn[3] >> 4) & 0xf; | 
|  | nibs[5] = insn[3] & 0xf; | 
|  |  | 
|  | nibs[6] = (insn[2] >> 4) & 0xf; | 
|  | nibs[7] = insn[2] & 0xf; | 
|  | } | 
|  | else | 
|  | { | 
|  | nibs[4] = (insn[2] >> 4) & 0xf; | 
|  | nibs[5] = insn[2] & 0xf; | 
|  |  | 
|  | nibs[6] = (insn[3] >> 4) & 0xf; | 
|  | nibs[7] = insn[3] & 0xf; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (nibs[0] == 0xf && (nibs[1] & 4) == 0 | 
|  | && SH_MERGE_ARCH_SET_VALID (target_arch, arch_sh_dsp_up)) | 
|  | { | 
|  | if (nibs[1] & 8) | 
|  | { | 
|  | int field_b; | 
|  |  | 
|  | status = info->read_memory_func (memaddr + 2, insn, 2, info); | 
|  |  | 
|  | if (status != 0) | 
|  | { | 
|  | info->memory_error_func (status, memaddr + 2, info); | 
|  | return -1; | 
|  | } | 
|  |  | 
|  | if (info->endian == BFD_ENDIAN_LITTLE) | 
|  | field_b = insn[1] << 8 | insn[0]; | 
|  | else | 
|  | field_b = insn[0] << 8 | insn[1]; | 
|  |  | 
|  | print_insn_ppi (field_b, info); | 
|  | print_insn_ddt ((nibs[1] << 8) | (nibs[2] << 4) | nibs[3], info); | 
|  | return 4; | 
|  | } | 
|  | print_insn_ddt ((nibs[1] << 8) | (nibs[2] << 4) | nibs[3], info); | 
|  | return 2; | 
|  | } | 
|  | for (op = sh_table; op->name; op++) | 
|  | { | 
|  | int n; | 
|  | int imm = 0; | 
|  | int rn = 0; | 
|  | int rm = 0; | 
|  | int rb = 0; | 
|  | int disp_pc; | 
|  | bfd_vma disp_pc_addr = 0; | 
|  | int disp = 0; | 
|  | int has_disp = 0; | 
|  | int max_n = SH_MERGE_ARCH_SET (op->arch, arch_op32) ? 8 : 4; | 
|  |  | 
|  | if (!allow_op32 | 
|  | && SH_MERGE_ARCH_SET (op->arch, arch_op32)) | 
|  | goto fail; | 
|  |  | 
|  | if (!SH_MERGE_ARCH_SET_VALID (op->arch, target_arch)) | 
|  | goto fail; | 
|  | for (n = 0; n < max_n; n++) | 
|  | { | 
|  | int i = op->nibbles[n]; | 
|  |  | 
|  | if (i < 16) | 
|  | { | 
|  | if (nibs[n] == i) | 
|  | continue; | 
|  | goto fail; | 
|  | } | 
|  | switch (i) | 
|  | { | 
|  | case BRANCH_8: | 
|  | imm = (nibs[2] << 4) | (nibs[3]); | 
|  | if (imm & 0x80) | 
|  | imm |= ~0xff; | 
|  | imm = ((char) imm) * 2 + 4; | 
|  | goto ok; | 
|  | case BRANCH_12: | 
|  | imm = ((nibs[1]) << 8) | (nibs[2] << 4) | (nibs[3]); | 
|  | if (imm & 0x800) | 
|  | imm |= ~0xfff; | 
|  | imm = imm * 2 + 4; | 
|  | goto ok; | 
|  | case IMM0_3c: | 
|  | if (nibs[3] & 0x8) | 
|  | goto fail; | 
|  | imm = nibs[3] & 0x7; | 
|  | break; | 
|  | case IMM0_3s: | 
|  | if (!(nibs[3] & 0x8)) | 
|  | goto fail; | 
|  | imm = nibs[3] & 0x7; | 
|  | break; | 
|  | case IMM0_3Uc: | 
|  | if (nibs[2] & 0x8) | 
|  | goto fail; | 
|  | imm = nibs[2] & 0x7; | 
|  | break; | 
|  | case IMM0_3Us: | 
|  | if (!(nibs[2] & 0x8)) | 
|  | goto fail; | 
|  | imm = nibs[2] & 0x7; | 
|  | break; | 
|  | case DISP0_12: | 
|  | case DISP1_12: | 
|  | disp = (nibs[5] << 8) | (nibs[6] << 4) | nibs[7]; | 
|  | has_disp = 1; | 
|  | goto ok; | 
|  | case DISP0_12BY2: | 
|  | case DISP1_12BY2: | 
|  | disp = ((nibs[5] << 8) | (nibs[6] << 4) | nibs[7]) << 1; | 
|  | relmask = ~(bfd_vma) 1; | 
|  | has_disp = 1; | 
|  | goto ok; | 
|  | case DISP0_12BY4: | 
|  | case DISP1_12BY4: | 
|  | disp = ((nibs[5] << 8) | (nibs[6] << 4) | nibs[7]) << 2; | 
|  | relmask = ~(bfd_vma) 3; | 
|  | has_disp = 1; | 
|  | goto ok; | 
|  | case DISP0_12BY8: | 
|  | case DISP1_12BY8: | 
|  | disp = ((nibs[5] << 8) | (nibs[6] << 4) | nibs[7]) << 3; | 
|  | relmask = ~(bfd_vma) 7; | 
|  | has_disp = 1; | 
|  | goto ok; | 
|  | case IMM0_20_4: | 
|  | break; | 
|  | case IMM0_20: | 
|  | imm = ((nibs[2] << 16) | (nibs[4] << 12) | (nibs[5] << 8) | 
|  | | (nibs[6] << 4) | nibs[7]); | 
|  | if (imm & 0x80000) | 
|  | imm -= 0x100000; | 
|  | goto ok; | 
|  | case IMM0_20BY8: | 
|  | imm = ((nibs[2] << 16) | (nibs[4] << 12) | (nibs[5] << 8) | 
|  | | (nibs[6] << 4) | nibs[7]); | 
|  | imm <<= 8; | 
|  | if (imm & 0x8000000) | 
|  | imm -= 0x10000000; | 
|  | goto ok; | 
|  | case IMM0_4: | 
|  | case IMM1_4: | 
|  | imm = nibs[3]; | 
|  | goto ok; | 
|  | case IMM0_4BY2: | 
|  | case IMM1_4BY2: | 
|  | imm = nibs[3] << 1; | 
|  | goto ok; | 
|  | case IMM0_4BY4: | 
|  | case IMM1_4BY4: | 
|  | imm = nibs[3] << 2; | 
|  | goto ok; | 
|  | case IMM0_8S: | 
|  | case IMM1_8: | 
|  | imm = (nibs[2] << 4) | nibs[3]; | 
|  | disp = imm; | 
|  | has_disp = 1; | 
|  | if (imm & 0x80) | 
|  | imm -= 0x100; | 
|  | goto ok; | 
|  | case IMM0_8U: | 
|  | disp = imm = (nibs[2] << 4) | nibs[3]; | 
|  | has_disp = 1; | 
|  | goto ok; | 
|  | case PCRELIMM_8BY2: | 
|  | imm = ((nibs[2] << 4) | nibs[3]) << 1; | 
|  | relmask = ~(bfd_vma) 1; | 
|  | goto ok; | 
|  | case PCRELIMM_8BY4: | 
|  | imm = ((nibs[2] << 4) | nibs[3]) << 2; | 
|  | relmask = ~(bfd_vma) 3; | 
|  | goto ok; | 
|  | case IMM0_8BY2: | 
|  | case IMM1_8BY2: | 
|  | imm = ((nibs[2] << 4) | nibs[3]) << 1; | 
|  | goto ok; | 
|  | case IMM0_8BY4: | 
|  | case IMM1_8BY4: | 
|  | imm = ((nibs[2] << 4) | nibs[3]) << 2; | 
|  | goto ok; | 
|  | case REG_N_D: | 
|  | if ((nibs[n] & 1) != 0) | 
|  | goto fail; | 
|  | /* Fall through.  */ | 
|  | case REG_N: | 
|  | rn = nibs[n]; | 
|  | break; | 
|  | case REG_M: | 
|  | rm = nibs[n]; | 
|  | break; | 
|  | case REG_N_B01: | 
|  | if ((nibs[n] & 0x3) != 1 /* binary 01 */) | 
|  | goto fail; | 
|  | rn = (nibs[n] & 0xc) >> 2; | 
|  | break; | 
|  | case REG_NM: | 
|  | rn = (nibs[n] & 0xc) >> 2; | 
|  | rm = (nibs[n] & 0x3); | 
|  | break; | 
|  | case REG_B: | 
|  | if (!(nibs[n] & 0x08)) /* Must always be 1.  */ | 
|  | goto fail; | 
|  | rb = nibs[n] & 0x07; | 
|  | break; | 
|  | case SDT_REG_N: | 
|  | /* sh-dsp: single data transfer.  */ | 
|  | rn = nibs[n]; | 
|  | if ((rn & 0xc) != 4) | 
|  | goto fail; | 
|  | rn = rn & 0x3; | 
|  | rn |= (!(rn & 2)) << 2; | 
|  | break; | 
|  | case PPI: | 
|  | case REPEAT: | 
|  | goto fail; | 
|  | default: | 
|  | abort (); | 
|  | } | 
|  | } | 
|  |  | 
|  | ok: | 
|  | /* sh2a has D_REG but not X_REG.  We don't know the pattern | 
|  | doesn't match unless we check the output args to see if they | 
|  | make sense.  */ | 
|  | if (target_arch == arch_sh2a | 
|  | && ((op->arg[0] == DX_REG_M && (rm & 1) != 0) | 
|  | || (op->arg[1] == DX_REG_N && (rn & 1) != 0))) | 
|  | goto fail; | 
|  |  | 
|  | fprintf_fn (stream, "%s\t", op->name); | 
|  | disp_pc = 0; | 
|  | for (n = 0; n < 3 && op->arg[n] != A_END; n++) | 
|  | { | 
|  | if (n && op->arg[1] != A_END) | 
|  | fprintf_fn (stream, ","); | 
|  | switch (op->arg[n]) | 
|  | { | 
|  | case A_IMM: | 
|  | fprintf_fn (stream, "#%d", imm); | 
|  | break; | 
|  | case A_R0: | 
|  | fprintf_fn (stream, "r0"); | 
|  | break; | 
|  | case A_REG_N: | 
|  | fprintf_fn (stream, "r%d", rn); | 
|  | break; | 
|  | case A_INC_N: | 
|  | case AS_INC_N: | 
|  | fprintf_fn (stream, "@r%d+", rn); | 
|  | break; | 
|  | case A_DEC_N: | 
|  | case AS_DEC_N: | 
|  | fprintf_fn (stream, "@-r%d", rn); | 
|  | break; | 
|  | case A_IND_N: | 
|  | case AS_IND_N: | 
|  | fprintf_fn (stream, "@r%d", rn); | 
|  | break; | 
|  | case A_DISP_REG_N: | 
|  | fprintf_fn (stream, "@(%d,r%d)", has_disp?disp:imm, rn); | 
|  | break; | 
|  | case AS_PMOD_N: | 
|  | fprintf_fn (stream, "@r%d+r8", rn); | 
|  | break; | 
|  | case A_REG_M: | 
|  | fprintf_fn (stream, "r%d", rm); | 
|  | break; | 
|  | case A_INC_M: | 
|  | fprintf_fn (stream, "@r%d+", rm); | 
|  | break; | 
|  | case A_DEC_M: | 
|  | fprintf_fn (stream, "@-r%d", rm); | 
|  | break; | 
|  | case A_IND_M: | 
|  | fprintf_fn (stream, "@r%d", rm); | 
|  | break; | 
|  | case A_DISP_REG_M: | 
|  | fprintf_fn (stream, "@(%d,r%d)", has_disp?disp:imm, rm); | 
|  | break; | 
|  | case A_REG_B: | 
|  | fprintf_fn (stream, "r%d_bank", rb); | 
|  | break; | 
|  | case A_DISP_PC: | 
|  | disp_pc = 1; | 
|  | disp_pc_addr = imm + 4 + (memaddr & relmask); | 
|  | (*info->print_address_func) (disp_pc_addr, info); | 
|  | break; | 
|  | case A_IND_R0_REG_N: | 
|  | fprintf_fn (stream, "@(r0,r%d)", rn); | 
|  | break; | 
|  | case A_IND_R0_REG_M: | 
|  | fprintf_fn (stream, "@(r0,r%d)", rm); | 
|  | break; | 
|  | case A_DISP_GBR: | 
|  | fprintf_fn (stream, "@(%d,gbr)", has_disp?disp:imm); | 
|  | break; | 
|  | case A_TBR: | 
|  | fprintf_fn (stream, "tbr"); | 
|  | break; | 
|  | case A_DISP2_TBR: | 
|  | fprintf_fn (stream, "@@(%d,tbr)", has_disp?disp:imm); | 
|  | break; | 
|  | case A_INC_R15: | 
|  | fprintf_fn (stream, "@r15+"); | 
|  | break; | 
|  | case A_DEC_R15: | 
|  | fprintf_fn (stream, "@-r15"); | 
|  | break; | 
|  | case A_R0_GBR: | 
|  | fprintf_fn (stream, "@(r0,gbr)"); | 
|  | break; | 
|  | case A_BDISP12: | 
|  | case A_BDISP8: | 
|  | (*info->print_address_func) (imm + memaddr, info); | 
|  | break; | 
|  | case A_SR: | 
|  | fprintf_fn (stream, "sr"); | 
|  | break; | 
|  | case A_GBR: | 
|  | fprintf_fn (stream, "gbr"); | 
|  | break; | 
|  | case A_VBR: | 
|  | fprintf_fn (stream, "vbr"); | 
|  | break; | 
|  | case A_DSR: | 
|  | fprintf_fn (stream, "dsr"); | 
|  | break; | 
|  | case A_MOD: | 
|  | fprintf_fn (stream, "mod"); | 
|  | break; | 
|  | case A_RE: | 
|  | fprintf_fn (stream, "re"); | 
|  | break; | 
|  | case A_RS: | 
|  | fprintf_fn (stream, "rs"); | 
|  | break; | 
|  | case A_A0: | 
|  | fprintf_fn (stream, "a0"); | 
|  | break; | 
|  | case A_X0: | 
|  | fprintf_fn (stream, "x0"); | 
|  | break; | 
|  | case A_X1: | 
|  | fprintf_fn (stream, "x1"); | 
|  | break; | 
|  | case A_Y0: | 
|  | fprintf_fn (stream, "y0"); | 
|  | break; | 
|  | case A_Y1: | 
|  | fprintf_fn (stream, "y1"); | 
|  | break; | 
|  | case DSP_REG_M: | 
|  | print_dsp_reg (rm, fprintf_fn, stream); | 
|  | break; | 
|  | case A_SSR: | 
|  | fprintf_fn (stream, "ssr"); | 
|  | break; | 
|  | case A_SPC: | 
|  | fprintf_fn (stream, "spc"); | 
|  | break; | 
|  | case A_MACH: | 
|  | fprintf_fn (stream, "mach"); | 
|  | break; | 
|  | case A_MACL: | 
|  | fprintf_fn (stream, "macl"); | 
|  | break; | 
|  | case A_PR: | 
|  | fprintf_fn (stream, "pr"); | 
|  | break; | 
|  | case A_SGR: | 
|  | fprintf_fn (stream, "sgr"); | 
|  | break; | 
|  | case A_DBR: | 
|  | fprintf_fn (stream, "dbr"); | 
|  | break; | 
|  | case F_REG_N: | 
|  | fprintf_fn (stream, "fr%d", rn); | 
|  | break; | 
|  | case F_REG_M: | 
|  | fprintf_fn (stream, "fr%d", rm); | 
|  | break; | 
|  | case DX_REG_N: | 
|  | if (rn & 1) | 
|  | { | 
|  | fprintf_fn (stream, "xd%d", rn & ~1); | 
|  | break; | 
|  | } | 
|  | /* Fall through.  */ | 
|  | case D_REG_N: | 
|  | fprintf_fn (stream, "dr%d", rn); | 
|  | break; | 
|  | case DX_REG_M: | 
|  | if (rm & 1) | 
|  | { | 
|  | fprintf_fn (stream, "xd%d", rm & ~1); | 
|  | break; | 
|  | } | 
|  | /* Fall through.  */ | 
|  | case D_REG_M: | 
|  | fprintf_fn (stream, "dr%d", rm); | 
|  | break; | 
|  | case FPSCR_M: | 
|  | case FPSCR_N: | 
|  | fprintf_fn (stream, "fpscr"); | 
|  | break; | 
|  | case FPUL_M: | 
|  | case FPUL_N: | 
|  | fprintf_fn (stream, "fpul"); | 
|  | break; | 
|  | case F_FR0: | 
|  | fprintf_fn (stream, "fr0"); | 
|  | break; | 
|  | case V_REG_N: | 
|  | fprintf_fn (stream, "fv%d", rn * 4); | 
|  | break; | 
|  | case V_REG_M: | 
|  | fprintf_fn (stream, "fv%d", rm * 4); | 
|  | break; | 
|  | case XMTRX_M4: | 
|  | fprintf_fn (stream, "xmtrx"); | 
|  | break; | 
|  | default: | 
|  | abort (); | 
|  | } | 
|  | } | 
|  |  | 
|  | #if 0 | 
|  | /* This code prints instructions in delay slots on the same line | 
|  | as the instruction which needs the delay slots.  This can be | 
|  | confusing, since other disassembler don't work this way, and | 
|  | it means that the instructions are not all in a line.  So I | 
|  | disabled it.  Ian.  */ | 
|  | if (!(info->flags & 1) | 
|  | && (op->name[0] == 'j' | 
|  | || (op->name[0] == 'b' | 
|  | && (op->name[1] == 'r' | 
|  | || op->name[1] == 's')) | 
|  | || (op->name[0] == 'r' && op->name[1] == 't') | 
|  | || (op->name[0] == 'b' && op->name[2] == '.'))) | 
|  | { | 
|  | info->flags |= 1; | 
|  | fprintf_fn (stream, "\t(slot "); | 
|  | print_insn_sh (memaddr + 2, info); | 
|  | info->flags &= ~1; | 
|  | fprintf_fn (stream, ")"); | 
|  | return 4; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | if (disp_pc && strcmp (op->name, "mova") != 0) | 
|  | { | 
|  | int size; | 
|  | bfd_byte bytes[4]; | 
|  |  | 
|  | if (relmask == ~(bfd_vma) 1) | 
|  | size = 2; | 
|  | else | 
|  | size = 4; | 
|  | /* Not reading an instruction - disable stop_vma.  */ | 
|  | info->stop_vma = 0; | 
|  | status = info->read_memory_func (disp_pc_addr, bytes, size, info); | 
|  | if (status == 0) | 
|  | { | 
|  | unsigned int val; | 
|  |  | 
|  | if (size == 2) | 
|  | { | 
|  | if (info->endian == BFD_ENDIAN_LITTLE) | 
|  | val = bfd_getl16 (bytes); | 
|  | else | 
|  | val = bfd_getb16 (bytes); | 
|  | } | 
|  | else | 
|  | { | 
|  | if (info->endian == BFD_ENDIAN_LITTLE) | 
|  | val = bfd_getl32 (bytes); | 
|  | else | 
|  | val = bfd_getb32 (bytes); | 
|  | } | 
|  | if ((*info->symbol_at_address_func) (val, info)) | 
|  | { | 
|  | fprintf_fn (stream, "\t! "); | 
|  | (*info->print_address_func) (val, info); | 
|  | } | 
|  | else | 
|  | fprintf_fn (stream, "\t! %x", val); | 
|  | } | 
|  | } | 
|  |  | 
|  | return SH_MERGE_ARCH_SET (op->arch, arch_op32) ? 4 : 2; | 
|  | fail: | 
|  | ; | 
|  |  | 
|  | } | 
|  | fprintf_fn (stream, ".word 0x%x%x%x%x", nibs[0], nibs[1], nibs[2], nibs[3]); | 
|  | return 2; | 
|  | } |